Method of recalibrating electronic scales

Details Method of recalibrating electronic scales Method of recalibrating electronic scales

G - Physics

01

G

G01G 23/01 (2006.01)

Patent

CA 2170853

A method of recalibrating an electronic scale is disclosed which causes the scale to indicate accurate weight measurements regardless of variations in the relative magnitude of the force of gravity under which the scale is operating between a site of origin where it is calibrated, and a site of installation which tend to adversely effect accurate weight. The method utilizes the known principles of gravity that it varies from place to place as afunction of elevation above sea level and proximity to the equator. Certain data relating to the effect on the accuracy of the scale due to variations in the gravitational force between a site of origin and a site of installation is placed in memory in the scale at a site of origin, where the scale is initially calibrated. When corresponding data indicative of the variation in the magnitude of gravitational force at the site of installation is then entered into the scale, the microprocessor of the scale adjusts the factory calibration to compensate for the difference in the magnitude of the force of gravity so that the digital readout of the scale indicates accurate weight for mail pieces placed thereon at the site of installation.

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